“…Hence, top-down approaches are gaining considerable research attention due to their simple fabrication procedures, easy scalability, good reproducibility, and low cost. [24][25][26] Nonetheless, the chemical inertness of pristine graphene, 27 renders it insoluble in organic solvents; hence, pure graphene is incompatible with solution synthesis. As a result, the derivatives of graphene, such as graphene oxide (GO), which is an oxygen functionalized graphene sheet, and reduced graphene oxide (rGO), have been widely explored owing to their high solubility in organic solvents, which makes them compatible with the lowcost, facile, and large-scale solution synthesis.…”